注意:此页面搜索的是所有试题
How amazing it is that Zuckberg can speak Chinese! After all, it is a big____ for any westerner to learn such a totally different language.
A. adventure
B. achievement
C. trend
D. challenge

参考答案


完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块